TRACE 700, Load Design, Chiller Plant
Analyzer, and Load Express updates are now available. The newest
version, 6.2.4, includes changes to the Coils tab of Create Systems
and a new software activation process. Both changes are explained in
more detail below.

In our efforts to continue creating
BIM solutions and to interact with other design software, this version
of TRACE 700 includes the ability to export files to HVAC Solutions
Pro 5. The export option will be available under
File>Export>HVAC Solutions. For more information, contact CDS at
608-787-3926 or cdshelp@trane.com.

With the introduction of version 6.2.4 of TRACE 700, two important
changes have been made to the Coils tab of Create Systems. These
changes are designed to help alleviate unmet load hours, as well as
provide more functionality for controlling calculated coil capacities
and airflows.

A note of caution: Changing components on
the Coils tab should be done with careful consideration. These values
and corresponding units of measure can have significant impact on load
design as well as energy usage.

The Coils tab of Create
Systems includes two new unit options for the Main Cooling Coil
Capacity field: “% of Design Capacity by adjusting airflow” and “% of
Design Capacity by allowing subcool.” When “% of Design Capacity by
adjusting airflow” is selected, TRACE will over/undersize the airflow
by the same amount that has been used to over/undersize the coil
capacity. For example, if the multiplier of 115% of Design Capacity by
adjusting airflow has been entered, the cooling coil will be oversized
by 15% beyond the design capacity and the airflow will be oversized by
15% as well.

Conversely, if a multiplier of 115% of
Design Capacity by allowing subcool was entered, the cooling coil
capacity will be adjusted by the user-entered value; however, the
airflows will not be adjusted by this value. The calculated airflow
from the Design simulation will be used. This methodology allows for
the cooling coil capacity to be adjusted, automatically, during the
System simulation when the nominal cooling coil capacity has been
exceeded for a given simulation hour.

When an existing
project is opened in TRACE 700 version 6.2.4, the default units of
measure in the Main Cooling Coil Capacity field will be changed from
“% of Design Cooling Capacity” to “% of Design Capacity by adjusting
airflow.” For most airside systems in TRACE, the main cooling coil
capacity units of measure will be “% of Design Capacity by adjusting
airflow” when a new airside system is created.

For
additional information, refer to the TRACE online help file. To access
the help file, press F1 while on the Coils tab in Create Systems and
then click Main cooling coil capacity (value & units). You
may also contact CDS at 608-787-3926 or cdshelp@trane.com for further information.

New Software Activation Process

In order to provide you with the best service and support, C.D.S. is
making it easier for you to keep your license current by notifying you
when it is time to renew. As always, current license holders are
entitled to free software updates, documentation, and world-class
customer support.

This change will require you to
activate TRACE 700. Activation instructions will be provided
on-screen.

2. In the Description field, select Domestic Hot
Water Load and click Copy.

3. Rename the copy and add
comments if desired.

4. Enter the hourly demand (use gpm,
therms, or MBh as the units).

5. Select a schedule that
would accurately alter the hourly maximum to fit the DHW usage
profile.

6. Select the energy type as process hot water
load and input the delta T, if gpm was used.

7. In Create
Plants, create a separate heating plant with a boiler assigned to the
plant.

8. On the Base Utility tab, define the domestic
hot water load as a base utility using the new library member. Assign
it to the heating plant and click Apply.

9. On the
Heating Equipment tab, specify the equipment type and full load
consumption of the hot water pump.

For more information,
refer to the TRACE User’s Manual, version 6.2, pages 3-62 to 3-63.

Why am I getting an expiration message when I launch TOPSS?

Due to AHRI requests, as well as a continuous effort to provide
customers with the most current information, Trane has implemented a
new version control process for TOPSS. TOPSS customers are currently
required to update software to ensure they are using the most current
Trane product selections. This new version control process ensures
consistency and accuracy.

The current version of TOPSS is
8.7.013. The following are install/update instructions:

Before downloading, we suggest that you uninstall the current
version of the program using the following steps.

1. If you want to save previous selections, copy the job
files with .psd extensions to another location outside of the \TOPSS
folder.

3. Click
Save to copy the update to your local hard drive. (Hint: Saving
the file on your desktop will make it easy to find.) Download time
will vary depending on your connection.

4. When the file
download is complete, double-click on the .exe to install the
application.

Remember to uninstall prior to
downloading the update. If you have any questions, feel free to
contact C.D.S. Support.

Meet Bob Fassbender

Bob Fassbender, a Marketing Engineer for the C.D.S. Group, joined
Trane in 2007 after graduating from the University of Wisconsin –
Madison with a BS in Chemical Engineering. In the C.D.S group, he
develops, supports, and trains customers to use Trane’s design, energy
and economic analysis software. His primary interest is
thermodynamics, and subsequently, green buildings. He is a LEED
accredited professional and a member of the American Society of
Heating, Refrigerating, and Air Conditioning Engineers (ASHRAE).

In his free time, Bob enjoys spending his time on the water,
either windsurfing, water-skiing, or fishing.